Loom-shuttle.



J. A. GUBELMANN. LOOM SHUTTLE.

APPLICATION FILED 001'. s, 1011.

15099357 Patented June 9, 1914.

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COLUIXIIA PLANOGRAPH CO-,WA!NINUTON. D- C.

J. A. GUBELMANN.

LOOM SHUTTLE.

APPLICATION FILED OUT. 6, 1911.

Patented June 9,1914.

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JOSE]? ANTON GUBELMANN, OF RAPPERSWIL, SWITZERLAND.

LOOM-SHUTTLE.

To all whom it may concern:

Be it known that I, JOSEF ANTON Gourm- MANN, a citizen of the Republic of Switzen land, residin at Rapperswil, Switzerland, have invented new and useful Improvements in Loom-Shuttles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The subject of my invention is a loom shuttle in which the part to place the bobbin on is arranged to be elastically movable in a longitudinal direction by means arranged within the head of the spindle.

Heretofore the spindle head has been detachably connected to the shuttle spindle; these often become loose and either fly out or cause thread breakages by being too loose, but the most serious inconvenience results from the accumulation of lint and fiber around the spring that yieldingly holds the bobbin holding tube. Another difficulty has been that the springs holding these tubes were quickly stretched beyond their elastic limits by the heavy blows on the shuttle by the picker staff. These difiiculties I have overcome by using a spindle that is not detachable from the spindle head, by inclosing the spring for the bobbin tube within the spindle head and by limiting the movement of the spring.

Some forms of construction according to this invention are illustrated in the accompanying drawings in which- Figure 1 is a longitudinal section through a part of a first construction, Fig. 2 a section on line A--B of Fig. 1, Fig. 3 a longitudinal section through a part of another construction, Fig. 4 a section on line (3-1) of Fig. 3, Fig. 5 a longitudinal section through a part of a third construction, Fig. 6 a section on line E-F of Fig. 5, Fig. 7 a longitudinal section through a part of a fourth construction, Fig. 8 a section on line GH of Fig. 7, Fig. 9 a longitudinal section through a part of a fifth construction, Fig. 10 a front View of the same, Fig. 11 a longitudinal section through a part of a sixth construction. Fig. 12 a front View of Specification of Letters Patent.

Application filed October 5, 1911.

PatentedJuliet), 1914.

Serial No. 652,902.

the same. Fig. 13 a longitudinal section through a part of a seventh construction.

In the first form of constrnctlon a is the spindle secured to its head 0 which is rotatable about the pivot g and under the action of a spring h to normally hold the spindle in the position shown. The spindle a is surrounded by an elastic slitted tube 6, which is expanded in its middle portion and open on the front end. The bobbin is placed on the tube 1) and is frictionally held thereon by the expanded middle portion. The tube 5 is provided on its rear end with a flanged border (Z, against which presses one end of a spring j, the other end of which presses against a screw-plug i, which closes the hollow space in the head of the spindle and containing the spring f and the end of tube Z) having the flanged border (I. This construction enables the tube with the bobbin to move elastically in a longitudinal direction when the shuttle bounds against the ends of its course and prevents the bobbin from being thrown off. The arrangement of the means for producing this effect within the head of the spindle prevents the spring h from exerting a braking action 011 the tube 5.

In the form of construction illustrated in Figs. 3 and 4t the tube 1) is closed on the front formin an air cushion between the tube end and spindle end.

In the form of construction shown in Figs. 5 and 6 the shape of the head 0 of the spindle differs from the previously described constructions. One leg of the spring it rests against an inner vertical. wall of the shuttle, while the other leg acts against the rear end of the head 0 of the spindle.

In the form of construction of Figs. 7 and 8 the head 0 of the spindle is removably clamped between two springs m.

In the form of construction of Figs. 9 and 10 the spindle a itself is the part to place the bobbin on. For this purpose the spindle a is provided on that end which is displaceably supported within the head 0 of the spindle with a collar 72. against which presses the end of the spring f. Also in the form of construction of Figs. 11 and 12 the spindle a is the part to place the bobbin on, the spindle being split and expanded to become elastic. The coller 'n. is provided with a transverse cut 0 by which it engages a pin 9 secured to the head 0 thus being prevented from turning. A spring 39 fixed to the spindle a secures the socket-1" of the bobbin in position. 7

In the form of construction of Fig. 13 the spindle a and the tube 6 are conical.

In the forms of constructions in which there is arranged a tube, there may also be provided a spring on the tube suchas p.

The spindle can be cylindrical or conical, also the tube can be cylindrical or conical. The tube can be open or closed on the front. The tube can be split or not split.

I claim a Y 1. A loom shuttle having a spindle head attached thereto and a spindle extending.

from the head in combination with a bobbin tube mounted on the spindle and extending within the head and a spring en-' tirely inclosed within the head and acting on said tube to permit longitudinal movement of said tube.

2. In a loom shuttle; a pivoted springheld spindle head having a recess therein,

ing a recess therein, a spindle secured to the head and projecting from the recess, a bob bin-supporting tube mounted on the spindle and having a flanged end, a closure for the recess through which the spindle and tube project and a coil spring surrounding the tube between the flanged end and closure.

I11 testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

JOSEF- ANTON GUBELMANN.

Witnesses I ARNOLD LEHNER, AUGUsT RUIGG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. a 

